103 lines
3.4 KiB
C#
103 lines
3.4 KiB
C#
// Copyright (C) 2026, The Duplicati Team
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// https://duplicati.com, hello@duplicati.com
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//
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// Permission is hereby granted, free of charge, to any person obtaining a
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// copy of this software and associated documentation files (the "Software"),
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// to deal in the Software without restriction, including without limitation
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// the rights to use, copy, modify, merge, publish, distribute, sublicense,
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// and/or sell copies of the Software, and to permit persons to whom the
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// Software is furnished to do so, subject to the following conditions:
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//
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// The above copyright notice and this permission notice shall be included in
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// all copies or substantial portions of the Software.
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//
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// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
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// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
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// FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
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// DEALINGS IN THE SOFTWARE.
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using System;
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using System.IO;
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using System.Threading;
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using System.Threading.Tasks;
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using Duplicati.Proprietary.DiskImage.Disk;
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using Duplicati.Proprietary.DiskImage.General;
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namespace Duplicati.Proprietary.DiskImage.Partition;
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/// <summary>
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/// Base implementation of <see cref="IPartition"/> that provides common properties
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/// and shared <see cref="OpenReadAsync"/> and <see cref="OpenWriteAsync"/> logic.
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/// </summary>
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internal class BasePartition : IPartition
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{
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/// <inheritdoc />
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public int PartitionNumber { get; init; }
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/// <inheritdoc />
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public PartitionType Type { get; init; }
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/// <inheritdoc />
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public required IPartitionTable PartitionTable { get; init; }
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/// <inheritdoc />
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public long StartOffset { get; init; }
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/// <inheritdoc />
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public long Size { get; init; }
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/// <inheritdoc />
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public string? Name { get; init; }
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/// <inheritdoc />
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public FileSystemType FilesystemType { get; init; }
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/// <inheritdoc />
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public Guid? VolumeGuid { get; init; }
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/// <summary>
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/// Gets the raw disk reference. May be null if the partition was reconstructed from metadata.
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/// </summary>
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public required IRawDisk? RawDisk { get; init; }
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/// <summary>
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/// Gets the starting LBA (for GPT/MBR partitions).
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/// </summary>
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public long StartingLba { get; init; }
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/// <summary>
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/// Gets the ending LBA (for GPT/MBR partitions).
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/// </summary>
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public long EndingLba { get; init; }
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/// <summary>
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/// Gets the partition attributes (for GPT partitions).
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/// </summary>
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public long Attributes { get; init; }
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/// <inheritdoc />
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public async Task<Stream> OpenReadAsync(CancellationToken cancellationToken)
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{
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if (RawDisk == null)
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throw new InvalidOperationException("RawDisk not available.");
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return new PartitionReadStream(RawDisk, StartOffset, Size);
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}
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/// <inheritdoc />
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public async Task<Stream> OpenWriteAsync(CancellationToken cancellationToken)
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{
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if (RawDisk == null)
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throw new InvalidOperationException("RawDisk not available.");
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return new PartitionWriteStream(RawDisk, StartOffset, Size);
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}
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/// <inheritdoc />
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public void Dispose()
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{
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// No unmanaged resources to dispose
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}
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}
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